. Railroad digest . erted by the shape of the filament. In Fig. 1 herewithis shown the horizontal and vertical distribution from a dou-ble-loop or twin-filament lamp, and in Figs. 2, 3 and 4 areshown, respectively, the distribution from oval anchored fila-ment, double-oil filament and spiral-filament lamps. It willhe noted that in the latter case the distribution is shown asuniform in all directions. A lamp of this type has lately been manufactured and puton the market by the Sterling Electrical Manufacturing Com-pany, of Warren. Ohio. The lamps are made in the usualvoltages and candle-powers
. Railroad digest . erted by the shape of the filament. In Fig. 1 herewithis shown the horizontal and vertical distribution from a dou-ble-loop or twin-filament lamp, and in Figs. 2, 3 and 4 areshown, respectively, the distribution from oval anchored fila-ment, double-oil filament and spiral-filament lamps. It willhe noted that in the latter case the distribution is shown asuniform in all directions. A lamp of this type has lately been manufactured and puton the market by the Sterling Electrical Manufacturing Com-pany, of Warren. Ohio. The lamps are made in the usualvoltages and candle-powers and with tlie usual .standard basesto fit the various types of sockets. Light Distribution from Incandescent Lamps Ktrcfrnal hrvinr, Dec. 7, 1901, p. the accompanying diagrams are shc(,wn some results pre-sented by Mr. Francis W. Wilcox before the last annual meet-ing of the National Electric Light Association. Mr. Wilcox, instudying the effective distribution of light from incandescentlamps. In-ought out ver. The Edison Storage Battery Electrical World and Engineer, Nov. 30, 1901, ]). Interest has again been stimulated by the loan exhibit at theautomobile show of a complete cell of the battery. The cell was12 inches high, 2 inches thick, o inches wide, and weighed iV2lbs., giving 120 watt-hours, or 40 lbs. per cell was also shown in its detail parts, and the steel platesexcited much comment and surprise, being in sharp contrastto the familiar ones of lead. Last June note was made of the formation of the EdisonStorage Battery Company, with a capital of $1,000,000, then reference has been made to the establishment of afactory at Glen Ridge. N. J., for the production of the bat-tery. At this present moment, the Glen Ridge factory is sofar advanced that the manufacture of batteries will begin withthe new year, and deliveries should come early in the spring. When interviewed on the subject last week, Mr. Edison ex-pressed himself with the
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